South America

River mouth where fresh water meets the salty sea water.

• estuary

• llanos

• pampas

• piedmont

Tropical grassland region in Venezuela.

• estuary

• llanos

• pampas

• piedmont

Temperate grassland in Argentina and Uruguay.

• estuary

• llanos

• pampas

• piedmont

a foothills region.

• estuary

• llanos

• pampas

• piedmont

Reasons for poverty in Brazil include all of the following except

• a lack of well-paying jobs in the cities.

• a scarcity of natural resources.

• poor soil and climate in the northeast.

• a lack of affordable farmland.

Land cleared from the rain forest for farming

• will remain fertile for decades and will yield large crops.

• becomes overgrown with heavy vegetation soon after being cleared.

• is productive about 10 years before turn into rain forest again.

• becomes exhausted by both rains and planting.

Brasilia, the capitol of Brazil, is located in the

• Brazilian Highlands

• Amazon region

• Northeast region

• Southeast region

Most people in the southeast live

• in rural areas where agriculture is plentiful

• in or near Rio de Janeiro and Sao Paulo.

• in the favelas scattered throughout the region.

• away from the coastline, where mining sites are located.

The three Guianas share all of the following characteristics except

• tropical wet climate

• vast areas of rain forest

• Spanish colonial background

• heritage of African slavery

Venezuela's economy relies most heavily on

• oil reserves

• cattle ranching

• fertile farmland

• mining bauxite